diff --git a/src/p_user.c b/src/p_user.c
index 46ae50ae3..189319a0a 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -2498,7 +2498,7 @@ boolean P_InJumpFlipSector(mobj_t *mo) // Returns true if you are in a jumpflip
 
 		for (rover = sector->ffloors; rover; rover = rover->next)
 		{
-			if (!(rover->flags & FF_EXISTS))
+			if (!(rover->fofflags & FOF_EXISTS))
 				continue;
 
 			if (!(rover->master->frontsector->specialflags & SSF_JUMPFLIP))